ES2328032T3 - Cancelador de eco con requerimientos reducidos de potencia de procesamiento. - Google Patents

Cancelador de eco con requerimientos reducidos de potencia de procesamiento. Download PDF

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Publication number
ES2328032T3
ES2328032T3 ES03770158T ES03770158T ES2328032T3 ES 2328032 T3 ES2328032 T3 ES 2328032T3 ES 03770158 T ES03770158 T ES 03770158T ES 03770158 T ES03770158 T ES 03770158T ES 2328032 T3 ES2328032 T3 ES 2328032T3
Authority
ES
Spain
Prior art keywords
signal
echo
sub
input
audio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES03770158T
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English (en)
Spanish (es)
Inventor
Trygve Frederik Marton
Ingvar Flaten Aarnes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tandberg Telecom AS
Original Assignee
Tandberg Telecom AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tandberg Telecom AS filed Critical Tandberg Telecom AS
Application granted granted Critical
Publication of ES2328032T3 publication Critical patent/ES2328032T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Electrotherapy Devices (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Telephonic Communication Services (AREA)
ES03770158T 2003-03-10 2003-11-11 Cancelador de eco con requerimientos reducidos de potencia de procesamiento. Expired - Lifetime ES2328032T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20031103 2003-03-10
NO20031103A NO318401B1 (no) 2003-03-10 2003-03-10 Et audio-ekkokanselleringssystem og en fremgangsmate for a tilveiebringe et ekkodempet utgangssignal fra et ekkotillagt signal

Publications (1)

Publication Number Publication Date
ES2328032T3 true ES2328032T3 (es) 2009-11-06

Family

ID=19914556

Family Applications (1)

Application Number Title Priority Date Filing Date
ES03770158T Expired - Lifetime ES2328032T3 (es) 2003-03-10 2003-11-11 Cancelador de eco con requerimientos reducidos de potencia de procesamiento.

Country Status (10)

Country Link
US (1) US7010119B2 (zh)
EP (1) EP1602223B1 (zh)
JP (1) JP2006514492A (zh)
CN (1) CN100521710C (zh)
AT (1) ATE433253T1 (zh)
AU (1) AU2003278623A1 (zh)
DE (1) DE60327895D1 (zh)
ES (1) ES2328032T3 (zh)
NO (1) NO318401B1 (zh)
WO (1) WO2004082249A1 (zh)

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NO328256B1 (no) * 2004-12-29 2010-01-18 Tandberg Telecom As Audiosystem
NO324318B1 (no) * 2005-04-29 2007-09-24 Tandberg Telecom As Fremgangsmate og anordning for stoydeteksjon.
TW200735624A (en) * 2006-01-27 2007-09-16 Mediatek Inc Method and apparatus for echo cancellation
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US7783478B2 (en) * 2007-01-03 2010-08-24 Alexander Goldin Two stage frequency subband decomposition
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JP5032669B2 (ja) * 2007-11-29 2012-09-26 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 音声信号のエコーキャンセルのための方法及び装置
US8744069B2 (en) * 2007-12-10 2014-06-03 Microsoft Corporation Removing near-end frequencies from far-end sound
US8433061B2 (en) * 2007-12-10 2013-04-30 Microsoft Corporation Reducing echo
US8219387B2 (en) * 2007-12-10 2012-07-10 Microsoft Corporation Identifying far-end sound
US8797377B2 (en) 2008-02-14 2014-08-05 Cisco Technology, Inc. Method and system for videoconference configuration
US8355041B2 (en) 2008-02-14 2013-01-15 Cisco Technology, Inc. Telepresence system for 360 degree video conferencing
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US8319819B2 (en) 2008-03-26 2012-11-27 Cisco Technology, Inc. Virtual round-table videoconference
US8390667B2 (en) 2008-04-15 2013-03-05 Cisco Technology, Inc. Pop-up PIP for people not in picture
US8290141B2 (en) * 2008-04-18 2012-10-16 Freescale Semiconductor, Inc. Techniques for comfort noise generation in a communication system
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US8694658B2 (en) 2008-09-19 2014-04-08 Cisco Technology, Inc. System and method for enabling communication sessions in a network environment
US8659637B2 (en) 2009-03-09 2014-02-25 Cisco Technology, Inc. System and method for providing three dimensional video conferencing in a network environment
US8477175B2 (en) * 2009-03-09 2013-07-02 Cisco Technology, Inc. System and method for providing three dimensional imaging in a network environment
US8659639B2 (en) 2009-05-29 2014-02-25 Cisco Technology, Inc. System and method for extending communications between participants in a conferencing environment
US9082297B2 (en) 2009-08-11 2015-07-14 Cisco Technology, Inc. System and method for verifying parameters in an audiovisual environment
US9225916B2 (en) 2010-03-18 2015-12-29 Cisco Technology, Inc. System and method for enhancing video images in a conferencing environment
US9313452B2 (en) 2010-05-17 2016-04-12 Cisco Technology, Inc. System and method for providing retracting optics in a video conferencing environment
US8896655B2 (en) 2010-08-31 2014-11-25 Cisco Technology, Inc. System and method for providing depth adaptive video conferencing
US8599934B2 (en) 2010-09-08 2013-12-03 Cisco Technology, Inc. System and method for skip coding during video conferencing in a network environment
CN101958122B (zh) * 2010-09-19 2013-01-09 杭州华三通信技术有限公司 一种回声消除的方法和装置
US9042535B2 (en) 2010-09-29 2015-05-26 Cisco Technology, Inc. Echo control optimization
US8599865B2 (en) 2010-10-26 2013-12-03 Cisco Technology, Inc. System and method for provisioning flows in a mobile network environment
US8699457B2 (en) 2010-11-03 2014-04-15 Cisco Technology, Inc. System and method for managing flows in a mobile network environment
US8902244B2 (en) 2010-11-15 2014-12-02 Cisco Technology, Inc. System and method for providing enhanced graphics in a video environment
US9338394B2 (en) 2010-11-15 2016-05-10 Cisco Technology, Inc. System and method for providing enhanced audio in a video environment
US8730297B2 (en) 2010-11-15 2014-05-20 Cisco Technology, Inc. System and method for providing camera functions in a video environment
US9143725B2 (en) 2010-11-15 2015-09-22 Cisco Technology, Inc. System and method for providing enhanced graphics in a video environment
US8542264B2 (en) 2010-11-18 2013-09-24 Cisco Technology, Inc. System and method for managing optics in a video environment
US8723914B2 (en) 2010-11-19 2014-05-13 Cisco Technology, Inc. System and method for providing enhanced video processing in a network environment
US9111138B2 (en) 2010-11-30 2015-08-18 Cisco Technology, Inc. System and method for gesture interface control
USD678894S1 (en) 2010-12-16 2013-03-26 Cisco Technology, Inc. Display screen with graphical user interface
USD678320S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD678308S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
USD682854S1 (en) 2010-12-16 2013-05-21 Cisco Technology, Inc. Display screen for graphical user interface
USD682294S1 (en) 2010-12-16 2013-05-14 Cisco Technology, Inc. Display screen with graphical user interface
USD682293S1 (en) 2010-12-16 2013-05-14 Cisco Technology, Inc. Display screen with graphical user interface
USD682864S1 (en) 2010-12-16 2013-05-21 Cisco Technology, Inc. Display screen with graphical user interface
USD678307S1 (en) 2010-12-16 2013-03-19 Cisco Technology, Inc. Display screen with graphical user interface
CN102065190B (zh) * 2010-12-31 2013-08-28 杭州华三通信技术有限公司 一种回声消除方法及其装置
US8692862B2 (en) 2011-02-28 2014-04-08 Cisco Technology, Inc. System and method for selection of video data in a video conference environment
US8670019B2 (en) 2011-04-28 2014-03-11 Cisco Technology, Inc. System and method for providing enhanced eye gaze in a video conferencing environment
US8786631B1 (en) 2011-04-30 2014-07-22 Cisco Technology, Inc. System and method for transferring transparency information in a video environment
US8934026B2 (en) 2011-05-12 2015-01-13 Cisco Technology, Inc. System and method for video coding in a dynamic environment
US8947493B2 (en) 2011-11-16 2015-02-03 Cisco Technology, Inc. System and method for alerting a participant in a video conference
US8682087B2 (en) 2011-12-19 2014-03-25 Cisco Technology, Inc. System and method for depth-guided image filtering in a video conference environment
CN102623016A (zh) * 2012-03-26 2012-08-01 华为技术有限公司 宽带语音处理方法及装置
JP5631523B2 (ja) * 2012-04-25 2014-11-26 三菱電機株式会社 エコー消去装置
US9681154B2 (en) 2012-12-06 2017-06-13 Patent Capital Group System and method for depth-guided filtering in a video conference environment
US9843621B2 (en) 2013-05-17 2017-12-12 Cisco Technology, Inc. Calendaring activities based on communication processing
US9876913B2 (en) 2014-02-28 2018-01-23 Dolby Laboratories Licensing Corporation Perceptual continuity using change blindness in conferencing
US10811027B2 (en) * 2016-06-08 2020-10-20 Dolby Laboratories Licensing Corporation Echo estimation and management with adaptation of sparse prediction filter set
US10122863B2 (en) * 2016-09-13 2018-11-06 Microsemi Semiconductor (U.S.) Inc. Full duplex voice communication system and method
US10388298B1 (en) * 2017-05-03 2019-08-20 Amazon Technologies, Inc. Methods for detecting double talk
EP3425923B1 (en) * 2017-07-06 2024-05-08 GN Audio A/S Headset with reduction of ambient noise
US10951859B2 (en) 2018-05-30 2021-03-16 Microsoft Technology Licensing, Llc Videoconferencing device and method
US20230412727A1 (en) * 2022-06-20 2023-12-21 Motorola Mobility Llc Adjusting Transmit Audio at Near-end Device Based on Background Noise at Far-end Device

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US4747132A (en) 1984-04-09 1988-05-24 Matsushita Electric Industrial Co., Ltd. Howling canceller
EP0310055B1 (en) * 1987-10-02 1994-01-12 Advanced Micro Devices, Inc. Adaptive echo-canceller with double-talker detection
US5305309A (en) * 1989-12-06 1994-04-19 Fujitsu Limited Echo canceller
CA2036078C (en) * 1990-02-21 1994-07-26 Fumio Amano Sub-band acoustic echo canceller
US5305307A (en) 1991-01-04 1994-04-19 Picturetel Corporation Adaptive acoustic echo canceller having means for reducing or eliminating echo in a plurality of signal bandwidths
FR2710210A1 (fr) * 1993-09-13 1995-03-24 Trt Telecom Radio Electr Procédé pour la mise en route d'un modem comportant un annuleur d'écho à phase variable et modem dans lequel un tel procédé est mis en Óoeuvre.
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JPH07264279A (ja) 1994-03-18 1995-10-13 Nec Corp エコーキャンセラ装置
JP3654470B2 (ja) * 1996-09-13 2005-06-02 日本電信電話株式会社 サブバンド多チャネル音声通信会議用反響消去方法
US6865270B1 (en) * 2000-09-21 2005-03-08 Rane Corporation Echo cancellation method and apparatus
JP4345225B2 (ja) * 2000-11-27 2009-10-14 沖電気工業株式会社 エコーキャンセラ

Also Published As

Publication number Publication date
DE60327895D1 (de) 2009-07-16
AU2003278623A1 (en) 2004-09-30
JP2006514492A (ja) 2006-04-27
US7010119B2 (en) 2006-03-07
CN1810015A (zh) 2006-07-26
WO2004082249A1 (en) 2004-09-23
NO20031103D0 (no) 2003-03-10
US20040218755A1 (en) 2004-11-04
EP1602223A1 (en) 2005-12-07
NO318401B1 (no) 2005-03-14
EP1602223B1 (en) 2009-06-03
CN100521710C (zh) 2009-07-29
ATE433253T1 (de) 2009-06-15

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